| Package | Affected versions | Patched versions |
|---|---|---|
| php | ≥ 5.3.0, ≤ 5.3.2 |
The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.
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